Cobaltoan Calcite with Malachite – Mupine Mine, Lualaba, DR Congo Vibrant cluster of vivid pink Cobaltoan Calcite crystals beautifully accented with rich green Malachite. The sparkling calcite forms botryoidal and crystalline surfaces, creating a stunning contrast of color and texture. This eye-catching piece comes from the Mupine Mine in the Lualaba province of the Democratic Republic of Congo – a region known for its exceptional cobalt and copper mineralization. The Mupine Mine, part of the famous Katanga Copper Crescent, has produced some of the finest Cobaltoan Calcite specimens on the market, often with striking malachite associations. A colorful and aesthetic specimen from a classic African locality.